Deep Learning in Classifying Bowel Obstruction Radiographs
NCT ID: NCT06321614
Last Updated: 2024-03-20
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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ACTIVE_NOT_RECRUITING
4500 participants
OBSERVATIONAL
2022-12-31
2024-12-31
Brief Summary
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Methods: A few number of confirmed and a large number of unlabeled radiographs were categorized based on the ground truth. The SSL model was firstly trained on the unlabeled radiographs, and then fine-tuned on the confirmed radiographs. ResNet50 and VGG16 were used for the embedded base encoders, whose weights and parameters were adjusted during training process. Furthermore, it was tested on an independent dataset, compared with supervised learning models and human interpreters. Finally, the t-SNE and Grad-CAM were used to visualize the model's interpretation.
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Detailed Description
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Conditions
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Study Design
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CASE_CONTROL
RETROSPECTIVE
Study Groups
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patients with normal abdominal radiographs
patients with normal abdominal radiographs, which were confirmed by extra imaging examinations and clinical data. The imaging examinations comprised CT, magnetic resonance imaging (MRI) and colonoscopy in the subsequent 72 hours, while clinical data included recent hospital admission information and surgical operation notes.
No interventions assigned to this group
patients with small bowel obstruction radiographs
patients with small bowel obstruction radiographs, which were confirmed by extra imaging examinations and clinical data. The imaging examinations comprised CT, magnetic resonance imaging (MRI) and colonoscopy in the subsequent 72 hours, while clinical data included recent hospital admission information and surgical operation notes. In terms of location, small-bowel obstruction (SBO) involves the duodenum, jejunum, and ileum
No interventions assigned to this group
patients with large bowel obstruction radiographs
patients with large bowel obstruction radiographs, which were confirmed by extra imaging examinations and clinical data. The imaging examinations comprised CT, magnetic resonance imaging (MRI) and colonoscopy in the subsequent 72 hours, while clinical data included recent hospital admission information and surgical operation notes. In terms of location, large-bowel obstruction (SBO), involves the cecum, colon, and rectum.
No interventions assigned to this group
Eligibility Criteria
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Inclusion Criteria
2. Aged 18 to 80 years
3. The main complaint was gastrointestinal symptoms
Exclusion Criteria
2. Non-gastrointestinal symptoms were the main complaint
3. Supine, prone, or lateral decubitus radiography
4. Paralytic obstruction, closed loop obstruction, et al
18 Years
80 Years
ALL
No
Sponsors
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The First Affiliated Hospital of Soochow University
OTHER
Responsible Party
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Principal Investigators
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Rui Li, MD
Role: STUDY_DIRECTOR
The First Affiliated Hospital of Soochow University
Locations
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TheFirst Affiliated Hospital of Soochow University
Suzhou, Jiangsu, China
Countries
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References
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Markogiannakis H, Messaris E, Dardamanis D, Pararas N, Tzertzemelis D, Giannopoulos P, Larentzakis A, Lagoudianakis E, Manouras A, Bramis I. Acute mechanical bowel obstruction: clinical presentation, etiology, management and outcome. World J Gastroenterol. 2007 Jan 21;13(3):432-7. doi: 10.3748/wjg.v13.i3.432.
Cheng PM, Tran KN, Whang G, Tejura TK. Refining Convolutional Neural Network Detection of Small-Bowel Obstruction in Conventional Radiography. AJR Am J Roentgenol. 2019 Feb;212(2):342-350. doi: 10.2214/AJR.18.20362. Epub 2018 Nov 26.
Kim DH, Wit H, Thurston M, Long M, Maskell GF, Strugnell MJ, Shetty D, Smith IM, Hollings NP. An artificial intelligence deep learning model for identification of small bowel obstruction on plain abdominal radiographs. Br J Radiol. 2021 Jun 1;94(1122):20201407. doi: 10.1259/bjr.20201407. Epub 2021 Apr 27.
Frager D. Intestinal obstruction role of CT. Gastroenterol Clin North Am. 2002 Sep;31(3):777-99. doi: 10.1016/s0889-8553(02)00026-2.
Cappell MS, Batke M. Mechanical obstruction of the small bowel and colon. Med Clin North Am. 2008 May;92(3):575-97, viii. doi: 10.1016/j.mcna.2008.01.003.
ten Broek RP, Strik C, Issa Y, Bleichrodt RP, van Goor H. Adhesiolysis-related morbidity in abdominal surgery. Ann Surg. 2013 Jul;258(1):98-106. doi: 10.1097/SLA.0b013e31826f4969.
Vanderbecq Q, Ardon R, De Reviers A, Ruppli C, Dallongeville A, Boulay-Coletta I, D'Assignies G, Zins M. Adhesion-related small bowel obstruction: deep learning for automatic transition-zone detection by CT. Insights Imaging. 2022 Jan 24;13(1):13. doi: 10.1186/s13244-021-01150-y.
Chen Y, Mancini M, Zhu X, Akata Z. Semi-Supervised and Unsupervised Deep Visual Learning: A Survey. IEEE Trans Pattern Anal Mach Intell. 2024 Mar;46(3):1327-1347. doi: 10.1109/TPAMI.2022.3201576. Epub 2024 Feb 6.
Li G, Togo R, Ogawa T, Haseyama M. Self-supervised learning for gastritis detection with gastric X-ray images. Int J Comput Assist Radiol Surg. 2023 Oct;18(10):1841-1848. doi: 10.1007/s11548-023-02891-5. Epub 2023 Apr 11.
Other Identifiers
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2022098
Identifier Type: -
Identifier Source: org_study_id
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